02-01-2024, 08:12 PM
It's usually football overruns or the President deciding he wants to make a speech that will see content "pre-empted". Nowadays I think the networks are a bit more flexible and will run a few minutes late but in the past it was not unusual at all for shows to just join a network show that was already in progress - so you might miss the first 10-20 minutes and then join the show. Otherwise shows might be bumped to overnight, which would often be 01:37 or 02:07, one the network late chat shows were completed. Digital sub-channels tend not to be used in the US as they're usually leased out to third parties, but in Canada now if a show can't air on the main network it will likely air on a digital off-shoot.